1065696025 has 9 divisors (see below), whose sum is σ = 1321665501. Its totient is φ = 852426240.

The previous prime is 1065696019. The next prime is 1065696041. The reversal of 1065696025 is 5206965601.

The square root of 1065696025 is 32645.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 368524809 + 697171216 = 19197^2 + 26404^2 .

It is not a de Polignac number, because 1065696025 - 2⁹ = 1065695513 is a prime.

It is a super-2 number, since 2×1065696025² = 2271416035401601250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 159961 + ... + 166489.

Almost surely, 2^1065696025 is an apocalyptic number.

1065696025 is the 32645-th square number.

1065696025 is the 16323-rd centered octagonal number.

It is an amenable number.

1065696025 is a deficient number, since it is larger than the sum of its proper divisors (255969476).

1065696025 is an frugal number, since it uses more digits than its factorization.

1065696025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The cubic root of 1065696025 is about 1021.4358941931.

The spelling of 1065696025 in words is "one billion, sixty-five million, six hundred ninety-six thousand, twenty-five".